My top tip - sounds like you parents are after something larger / a different shape to 'the norm' - be sure you know how you'll transport it / get it into the house.... we had a nervous hour or two when we brought our table home - thankfully it was going straight though the back door, into the dining room. It made it in with <10mm to spare! In the recent house move, it came out the same way but we had to take the front window out to get it in the new place....